.accordion collapse {
  border: 0;
}

.accordion-button:focus {
  box-shadow: none;
  border: none;
}

.accordion-button:not(.collapsed) {
  background: none;
  color: #ff9800;
  box-shadow: none;
  border-bottom: none;
}

.accordion-button::after {
  width: auto;
  height: auto;
  content: "+";
  font-size: 40px;
  background-image: none;
  font-weight: 100;
  color: #1b6ce5;
  transform: translateY(-4px);
}

.accordion-button:not(.collapsed)::after {
  width: auto;
  height: auto;
  background-image: none;
  content: "-";
  font-size: 48px;
  transform: translate(-5px, -4px);
  transform: rotate(0deg);
}

@media (min-width: 300px) {
  .footer-about {
  }
}

@media (min-width: 300px) {
  .footer-contacts {
  }
}

@media (min-width: 300px) {
  .footer-navigation {
  }
}

@media (min-width: 576px) {
  .footer-navigation {
    border-top-style: groove;
    border-right-style: groove;
    border-bottom-style: groove;
  }
}

@media (min-width: 576px) {
  .footer-contacts {
    border-top-style: groove;
    border-bottom-style: groove;
    border-left-style: groove;
  }
}

@media (min-width: 576px) {
  .footer-about {
    border-top-style: groove;
    border-bottom-style: groove;
  }
}

.footer-navigation {
  border-right-style: groove;
}

@media (min-width: 768px) {
  .footer-contacts {
    border-right-style: groove;
    border-left-style: groove;
  }
}